A.2.136 –xlibmopt

Uses library of optimized math routines. You must use default rounding mode by specifying -fround=nearest when you use this option.

This option uses a math routine library optimized for performance and usually generates faster code. The results might be slightly different from those produced by the normal math library; if so, they usually differ in the last bit.

The order on the command line for this library option is not significant.

A.2.136.1 Interactions

This option is implied by the –fast option.

See also

–fast, –xnolibmopt, -fround